Shimano Dura Ace first generation groupset from the early 70s 600-700 Production date / Produktionszeitraum :

Production date / Produktionszeitraum :

clamp size : 22

No production stamp and an elevated bottom bracket hole means usually 1959-61

single pivot calipers

Shimano Dura Ace first generation groupset from the early 70s 600-700 Production date / Produktionszeitraum :Crankset Kurbelgarnitur : Shimano Dura Ace #GA 200, 170mm, 52 44 Bottom bracket Innenlager : Shimano, italian threading, 113mm spindle length Rear Derailleur Schaltwerk : Shimano Crane #D 501, capeable for 6 & 7 speeds Front Derailleur Umwerfer : Shimano Dura Ace #EA 100, clamp on Shifters Schalthebel : Shimano Dura Ace #L 284 SL 101 braze on Brake levers Bremshebel : Shimano Dura Ace #M 140 Ma 100, non aero brake levers, 24,2 clamp size Brake